The LaTeX Project Team submitted an update to the

l3kernel-dev

package.

Version: 2026-05-26 License: lppl1.3c

Summary description: Development pre-release of l3kernel

Announcement text: ----------------------------------------------------------------------

### Added

- Symbolic support for variadic functions (issue #1306)

### Changed

- Extend docs for `\keys_if_exist:n(TF)` (see issue #1902) - Anticipate ranges in catcode-in-class mode (issue #1903)

### Fixed

- Nested inheritance of key defaults (issue #1901)

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The package’s Catalogue entry can be viewed at https://ctan.org/pkg/l3kernel-dev

The package’s files themselves can be inspected at https://mirrors.ctan.org/macros/latex-dev/required/l3kernel/

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Thanks for the upload.

For the CTAN Team Petra Rübe-Pugliese

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